CN113802701B - Cast-in-place concrete plugging air bag device and using method - Google Patents
Cast-in-place concrete plugging air bag device and using method Download PDFInfo
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- CN113802701B CN113802701B CN202111221063.6A CN202111221063A CN113802701B CN 113802701 B CN113802701 B CN 113802701B CN 202111221063 A CN202111221063 A CN 202111221063A CN 113802701 B CN113802701 B CN 113802701B
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/62—Insulation or other protection; Elements or use of specified material therefor
- E04B1/66—Sealings
- E04B1/68—Sealings of joints, e.g. expansion joints
- E04B1/6801—Fillings therefor
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G21/00—Preparing, conveying, or working-up building materials or building elements in situ; Other devices or measures for constructional work
- E04G21/02—Conveying or working-up concrete or similar masses able to be heaped or cast
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Abstract
The invention discloses a cast-in-place concrete blocking air bag device and a using method thereof, belonging to the technical field of concrete blocking. The air bag plugging device comprises an air bag plugging main body and a rigid limiting frame body, wherein the air bag plugging main body consists of a square air bag and a tentacle air bag, and the tentacle air bag surrounds the outer side of the square air bag; the rigid limiting frame body consists of an L-shaped limiting frame, a vertical tentacle limiting frame, a bottom tentacle air bag supporting block, a limiting slide rail, a limiting frame lock catch and a longitudinal limiting frame rod. The invention adopts the combination of a mechanical rigidity limiting frame body and an air bag plugging main body with certain strength, the air bag plugging main body adopts a nylon fiber air bag as a self-adaptive plugging core fabric, the rigidity limiting frame body is an auxiliary material for air bag limiting so as to realize the novel plugging effect of a concrete cast-in-place structure, and the air bag plugging main body is treated by adopting the modes of inflation plugging and air leakage extraction, thereby playing the role of plugging the cast-in-place structure, being convenient to disassemble and simplifying the later-stage form removal process.
Description
Technical Field
The invention relates to the technical field of concrete plugging, in particular to a cast-in-place concrete plugging air bag device and a using method thereof.
Background
In the early stage of concrete pouring, construction units need to plug construction joints, post-cast strips and other parts of a cast-in-place structure, the traditional construction mode adopts a steel bar and a steel wire mesh to plug or a square timber is vertically inserted into the steel bar mesh to block concrete slurry, and the two traditional construction modes have construction defects. Although the cast-in-place structure concrete is effectively blocked after the steel bars and the steel wire meshes are combined, the construction defect comprises two stages, in the concrete pouring stage, the steel wire meshes only play an effective intercepting role on concrete aggregate, concrete slurry permeates through meshes of the steel wire meshes, the problem of concrete pitted surface at the stubbles of construction joints and post-cast belts is caused, the quality accident of holes is caused at the stubbles of the joints with serious slurry permeation, the steel wire meshes are dug and blocked in the later period, and the treatment process and the difficulty of the stubbles of new and old concrete are increased. The construction modes of the parts such as the batten plugging construction joint, the post-cast strip and the like have the characteristics of fastening installation and tight sealing, but the batten is bonded with the concrete surface due to the rough surface and the section size of the batten in the form removal process after pouring, the batten is inserted in a manner of being perpendicular to a reinforcing mesh and is affected by the longitudinal section size due to transverse bonding, and the later-stage new and old concrete joint part needs to be subjected to chiseling treatment by using an electric pick.
Disclosure of Invention
1. Technical problem to be solved by the invention
Aiming at the defects and shortcomings in the prior art, the invention provides a cast-in-place concrete plugging air bag device and a using method thereof.
2. Technical scheme
In order to achieve the purpose, the technical scheme provided by the invention is as follows:
the cast-in-place concrete blocking air bag device comprises an air bag blocking main body and a rigid limiting frame body, wherein the air bag blocking main body consists of a square air bag and a tentacle air bag, and the tentacle air bag is surrounded on the outer side of the square air bag;
the rigid limiting frame body is composed of an L-shaped limiting frame, a vertical tentacle limiting frame, a bottom tentacle air bag supporting block, a limiting slide rail, a limiting frame lock catch and a longitudinal limiting frame rod, wherein the bottom tentacle air bag supporting block is arranged at the lower end of the tentacle air bag at intervals, the upper end of the tentacle air bag is provided with the L-shaped limiting frame, the bottom side of the L-shaped limiting frame is provided with the vertical tentacle limiting frame, one side of the L-shaped limiting frame is provided with the limiting slide rail, the track of the limiting slide rail is provided with the limiting frame lock catch, the limiting frame lock catch is vertically provided with a columnar through hole structure, the through hole is internally provided with the longitudinal limiting frame rod, and the bottom end of the longitudinal limiting frame rod is connected with the bottom tentacle air bag supporting block.
Furthermore, the square air bag and the tentacle air bag are of an integrated structure and are made of nylon fiber fabric.
Furthermore, the surface of tentacle gasbag be provided with the American air cock, the port department of American air cock installs the air cap.
Furthermore, the L-shaped limiting frame is used for carrying out rigid semi-surrounding limiting wrapping on one side, back to the concrete, of the air bag plugging main body.
Furthermore, the limiting frame lock catch consists of an overhanging support rod and a hollow columnar structure, wherein the overhanging support rod is arranged on one side of the hollow columnar structure, and the overhanging support rod is in butt joint with the steel bar component and is bound with the steel bar through a binding wire to realize the limiting and fastening functions.
Furthermore, the upper end of the longitudinal limiting frame rod penetrates through the limiting frame lock catch and is connected with a fastening bolt and a top nut, and the lower end of the longitudinal limiting frame rod penetrates through the bottom to touch the airbag supporting block.
Furthermore, the bottom tentacle air bag supporting block is arranged in a columnar hollow mode, and the inner wall is smooth and is not provided with a mantle fiber.
A use method of a cast-in-place concrete plugging air bag device comprises the following steps:
the method comprises the following steps: after the beam and the plate steel bars are bound, the blocking air bag in the air leakage state is placed on the abdomen of the beam steel bars, and the American-type air nozzle faces upwards so as to inflate the air bag blocking main body;
step two: after an operator arranges an air bag device, air is injected by using an air pump through effective butt joint with an American air faucet, after the surface of the air bag is hardened, the air pump is disassembled and screwed down by using an air cap to ensure that compressed air in the air bag is not leaked, and for the part of the air bag blocked by a reinforcing steel bar, the operator manually shifts a tentacle air bag to realize effective flexible self-adaptive plugging;
step three: the L-shaped limiting frame is used for carrying out rigid semi-surrounding limiting wrapping on one side, back to concrete, of the top of the air bag, the L-shaped limiting frame is arranged as a L-shaped body, and plates with the same thickness as the L-shaped limiting frame are arranged on two sides of the L-shaped limiting frame and used for carrying out rigid limiting supporting on the easily-disturbed part of the tentacle air bag;
step four: the vertical surface of the L-shaped limiting frame is provided with a limiting slide rail opposite to the concrete surface so that a limiting frame lock catch can be adjusted, aligned and bound in the horizontal axial direction, and the limiting frame lock catch vertically allows a longitudinal limiting frame rod and a bottom tentacle air bag supporting block to be mechanically inserted to form an integral rigid structure;
step five: the overhanging support rod of the limiting frame lock catch plays a role in connecting and supporting binding steel bars, and the overhanging support rod is butted with a steel bar component and bound with the steel bars through binding wires to realize the limiting and fastening functions;
step six: the longitudinal limiting frame rod is in inserting transition through a hollow columnar structure of the limiting frame lock catch, the longitudinal limiting frame rod is in fastening connection with the limiting slide rail through a fastening bolt and a top nut at the top of the longitudinal limiting frame rod to prevent the longitudinal limiting frame rod from falling off due to disturbance in the cast-in-place concrete pouring process, the longitudinal limiting frame rod is inserted into the bottom tentacle air bag supporting block to realize an integral limiting structure, the bottom tentacle air bag supporting block is in columnar hollow arrangement, the inner wall is smooth and is not provided with a mantle fiber, and M5 mixed mortar can be arranged at the bottom to reinforce the easily-disturbed part of the tentacle air bag if construction requirements exist;
step seven: after concrete is finally set, firstly removing the binding wires bound by the overhanging supporting rods of the lock catch of the limiting frame and the reinforcing steel bars, and then loosening the longitudinal limiting frame rod by using a flat screwdriver and extracting the longitudinal limiting frame rod;
step eight: after the rigid limiting frame body is dismantled, an operator screws the air cap, the pressurized air inside the air bag is released through the American air faucet, the air bag and the concrete surface layer part are stripped after the air is fully deflated, the dismantling process is the last processing procedure, and the problems of chiseling square wood, chiseling steel wire mesh and chiseling concrete grout leakage cannot occur in the later stage.
3. Advantageous effects
Compared with the prior art, the technical scheme provided by the invention has the following beneficial effects:
the invention is applied to concrete pouring engineering, the mechanical rigidity limiting frame body is combined with the air bag plugging main body with certain strength, the air bag plugging main body adopts the nylon fiber air bag as a self-adaptive plugging core fabric, the rigidity limiting frame body is an auxiliary material for air bag limiting so as to realize the novel plugging effect of a concrete cast-in-place structure, the defects of the traditional construction are changed by combining the nylon fiber material and the American air nozzle, the inflatable plugging and air leakage extraction modes are adopted for processing, the plugging effect of the cast-in-place structure is realized, the disassembly is convenient, and the later-stage formwork disassembly process is simplified.
The flexible plugging and rigid auxiliary forming tool takes flexible plugging and rigid auxiliary as structural design cores, adopts polyamide materials as forming materials of the air bag, enables the tool to be durable in a complex construction environment for a long time, does not need operators to add complicated procedures of post-picking and chiseling treatment, enables the operation to be convenient and fast through specialization and pertinence of construction appliances, and has a good auxiliary function for plugging a cast-in-place concrete structure.
Drawings
FIG. 1 is an isometric view of a body assembly of the present invention;
FIG. 2 is a view of an airbag device of the present invention;
FIG. 3 is a cross-sectional view of a retaining slide of the present invention;
FIG. 4 is a view of the stopper rod of the present invention;
FIG. 5 is a detailed view of the bolt of the present invention;
fig. 6 is a state diagram of the present invention.
In the figure: 1. a square air bag; 2. a tentacle air bag; 3. an American air faucet; 4. an L-shaped limiting frame; 5. a vertical tentacle limiting frame; 6. a bottom tentacle air bag support block; 7. a limiting slide rail; 8. an air cap; 9. locking the limiting frame; 91. an overhanging strut; 92. a hollow columnar structure; 10. a longitudinal limit hack lever; 11. fastening a bolt; 12. a top nut.
Detailed Description
The invention is further described below with reference to the following figures and examples:
example 1
As can be seen from fig. 1 to 6, the cast-in-place concrete plugging air bag device of the embodiment comprises an air bag plugging main body and a rigid limiting frame body, wherein the air bag plugging main body consists of a square air bag 1 and a tentacle air bag 2, and the tentacle air bag 2 surrounds the outer side of the square air bag 1;
the invention adopts the combination of a mechanical rigidity limiting frame body and an air bag plugging main body with certain strength, the air bag plugging main body adopts a nylon fiber air bag as a self-adaptive plugging core fabric, and the rigidity limiting frame body is an auxiliary material for air bag limiting so as to realize the novel plugging effect of a concrete cast-in-place structure.
The spacing support body of rigidity is by the spacing 4 of L type, vertical tentacle spacing 5, bottom tentacle gasbag supporting shoe 6, spacing slide rail 7, spacing hasp 9, vertical spacing hack lever 10 is constituteed, 6 intervals of bottom tentacle gasbag supporting shoe set up the lower extreme at tentacle gasbag 2, the upper end of tentacle gasbag 2 is provided with the spacing 4 of L type, the bottom side of the spacing 4 of L type is provided with vertical tentacle spacing 5, one side of the spacing 4 of L type is provided with spacing slide rail 7, be provided with spacing hasp 9 on the track of spacing slide rail 7, columnar through-hole structure has been seted up along vertical to spacing hasp 9, be provided with vertical spacing hack lever 10 in the through-hole, the bottom and the bottom of vertical spacing hack lever 10 are touched gasbag supporting shoe 6 and are connected.
The square air bag 1 and the tentacle air bag 2 are of an integral structure and are made of a nylon fiber fabric, the nylon fiber has the characteristics of no toxicity, light weight, excellent mechanical strength, wear resistance, better corrosion resistance and the like, and further has the characteristics of mechanical property, heat resistance, wear resistance, chemical resistance, self-lubrication, low friction coefficient, certain flame retardance and easiness in processing, the characteristics of the nylon fiber material are suitable for the complex environment of a construction site, and especially the plugging performance of the device is guaranteed for sharp objects such as thick and thin aggregates, steel bar burrs, binding wires and the like contained in concrete.
The surface of tentacle gasbag 2 is provided with American air cock 3, American air cock 3 is the gasbag inlet of aerifing, air cap 8 is installed to the port department of American air cock 3, after the operation personnel arranged the gasbag device, use the air pump through with American air cock 3 effective butt joint injection air, treat that gasbag surface hardening reaches the uniform strength after, dismantle the air pump and screw up with air cap 8 and do not reveal in order to guarantee the gasbag internal compressed gas, receive the reinforcing bar to the gasbag and block the position, move the touch gas by the manual work of operation personnel, 2, realize effectual flexible self-adaptation shutoff.
Spacing 4 of L type carries out rigidity half to surround spacing parcel to gasbag shutoff main part dorsad concrete one side, and spacing 4 of L type is gasbag top stop device, carries out rigidity half to surround spacing parcel to gasbag top dorsad concrete one side, and spacing 4 of L shape is "L" shape setting, and both sides set up that plate and spacing 4 of L shape are the same thickness carry out rigidity spacing support to the easy disturbance position of gasbag shutoff main part.
The vertical surface of the L-shaped limiting frame 4, which faces away from the concrete surface, is provided with a limiting slide rail 7 for the functions of adjusting, aligning and binding the limiting frame lock catch 9 in the horizontal axial direction, and the limiting frame lock catch 9 is vertically provided with a through hole for the mechanical penetration of the longitudinal limiting frame rod 10 and the bottom tentacle air bag supporting block 6 to form an integral rigid structure.
Spacing hasp 9 comprises outrigger 91 and hollow columnar structure 92, and one side of hollow columnar structure 92 is provided with outrigger 91, and outrigger 91 of spacing hasp 9 plays the effect of joint support for the ligature reinforcing bar, and outrigger 91 and reinforcing bar component dock and realize spacing fastening's function through pricking silk and reinforcement.
The upper end of the longitudinal limiting frame rod 10 penetrates through the limiting frame lock 9 and is connected with a fastening bolt 11 and a top nut 12, and the lower end of the longitudinal limiting frame rod 10 penetrates through the bottom tentacle air bag supporting block 6.
Vertical spacing hack lever 10 realizes alternate transition through hollow columnar structure 92 of spacing hasp 9, and through fastening bolt 11, top nut 12 carries out fastening connection with spacing slide rail 7 and makes vertical spacing hack lever 10 drop with the disturbance of preventing cast in situ concrete pouring in-process, vertical spacing hack lever 10 bottom alternates with bottom tentacle gasbag supporting shoe 6 in order to realize whole spacing structure, bottom tentacle gasbag supporting shoe 6 is the hollow setting of column, the smooth mantle fiber setting of inner wall, if there is the construction demand can set up M5 mixed mortar in the bottom and reinforce the easy disturbance position of tentacle gasbag.
A use method of a cast-in-place concrete plugging air bag device comprises the following steps:
the method comprises the following steps: after the beam and the plate steel bars are bound, the blocking air bag in the air leakage state is placed on the abdomen of the beam steel bars, and the American air nozzle 3 faces upwards so as to inflate the air bag blocking main body;
step two: after an operator arranges an air bag device, air is injected by using an air pump through effective butt joint with the American-style air faucet 3, after the surface of the air bag is hardened, the air pump is disassembled and screwed down by using an air cap 8 so as to ensure that compressed air in the air bag is not leaked, and for the part of the air bag blocked by a reinforcing steel bar, the operator manually shifts the tentacle air bag 2 to realize effective flexible self-adaptive plugging;
step three: the L-shaped limiting frame 4 is used for carrying out rigid semi-surrounding limiting wrapping on one side, back to concrete, of the top of the air bag, the L-shaped limiting frame 4 is arranged as a 'L', plates with the same thickness as the L-shaped limiting frame 4 are arranged on two sides of the L-shaped limiting frame to carry out rigid limiting supporting on the easily-disturbed part of the tentacle air bag 2;
step four: the vertical surface of the L-shaped limiting frame 4, which faces away from the concrete surface, is provided with a limiting slide rail 7 for the horizontal axial adjustment, alignment and binding of a limiting frame lock catch 9, and the limiting frame lock catch 9 vertically allows a longitudinal limiting frame rod 10 and a bottom tentacle air bag supporting block 6 to be mechanically inserted to form an integral rigid structure;
step five: the overhanging strut 91 of the limiting frame lock catch 9 plays a role in connecting and supporting binding steel bars, and the overhanging strut 91 is butted with a steel bar component and bound with the steel bars through binding wires to realize the limiting and fastening functions;
step six: the longitudinal limiting frame rod 10 is in penetrating transition through a hollow columnar structure 92 of the limiting frame lock catch 9, the longitudinal limiting frame rod 10 is in fastening connection with a limiting slide rail 7 through a fastening bolt 11 and a top nut 12 at the top of the longitudinal limiting frame rod 10 to prevent the longitudinal limiting frame rod 10 from falling off due to disturbance in the cast-in-place concrete pouring process, the longitudinal limiting frame rod is in penetrating connection with the bottom tentacle air bag supporting block 6 to achieve an integral limiting structure, the bottom tentacle air bag supporting block 6 is in columnar hollow arrangement, the inner wall is smooth and is not provided with a mantle fiber, and M5 mixed mortar can be arranged at the bottom to reinforce the position, easy to disturb, of the tentacle air bag 2 if construction requirements exist;
step seven: after concrete is finally set, firstly removing the outward extending support rod 91 of the limiting frame lock catch 9 and the binding wire bound with the steel bar, then loosening the longitudinal limiting frame rod 10 by using a flat screwdriver and extracting the longitudinal limiting frame rod 10;
step eight: after the rigid limiting frame body is dismantled, an operator screws the air cap 8, the pressurized air inside the air bag is released through the American air nozzle 3, the air bag and the concrete surface layer part are stripped after sufficient air leakage, the dismantling process is the last processing procedure, and the problems of chiseling square wood, chiseling steel wire mesh and chiseling concrete leakage cannot occur in the later stage.
The invention aims to place an air bag in an air leakage state at a construction joint or a post-pouring belt position before concrete pouring, harden the surface of the air bag due to the air capacity ratio in the air bag through an air pump, adapt to the shape of a post-pouring belt limiting template in a self-adaption mode, realize the concrete blocking effect, realize the blocking function of a concrete cast-in-place structure by combining the air bag with a rigid support, and adapt to a complex placing environment with criss-cross reinforcing steel bars by designing the air bag adjacent side structure.
The invention is applied to concrete pouring engineering, the mechanical rigidity limiting frame body is combined with the air bag plugging main body with certain strength, the air bag plugging main body adopts the nylon fiber air bag as a self-adaptive plugging core fabric, the rigidity limiting frame body is an auxiliary material for air bag limiting so as to realize the novel plugging effect of a concrete cast-in-place structure, the defects of the traditional construction are changed by combining the nylon fiber material and the American air nozzle 3, the treatment is carried out by adopting the modes of inflation plugging and air leakage extraction, the plugging effect of the cast-in-place structure is realized, the disassembly is convenient, and the later-stage form removal process is simplified.
The flexible plugging and rigid auxiliary forming tool takes flexible plugging and rigid auxiliary as structural design cores, adopts polyamide materials as forming materials of the air bag, enables the tool to be durable in a complex construction environment for a long time, does not need operators to add complicated procedures of post-picking and chiseling treatment, enables the operation to be convenient and fast through specialization and pertinence of construction appliances, and has a good auxiliary function for plugging a cast-in-place concrete structure.
After the air bag is used and removed, the nylon material is not bonded with concrete due to self-lubricating and chemical corrosion resistant characteristics, and is not easy to corrode when contacting with concrete, and the air bag is easy to peel off, the removal is the last processing procedure, and the problems of chiseling square wood, chiseling steel wire mesh, chiseling concrete leakage and the like cannot occur in the later period.
The present invention and its embodiments have been described above schematically, without limitation, and what is shown in the drawings is only one of the embodiments of the present invention, and the actual structure is not limited thereto. Therefore, if the person skilled in the art receives the teaching, without departing from the spirit of the invention, the person skilled in the art shall not inventively design the similar structural modes and embodiments to the technical solution, but shall fall within the scope of the invention.
Claims (4)
1. The utility model provides a cast in situ concrete shutoff gasbag device, includes the spacing support body of gasbag shutoff main part and rigidity, its characterized in that: the air bag plugging main body consists of a square air bag (1) and a tentacle air bag (2), and the tentacle air bag (2) surrounds the outer side of the square air bag (1);
the rigid limit frame body consists of an L-shaped limit frame (4), a vertical tentacle limit frame (5), a bottom tentacle air bag support block (6), a limit slide rail (7), a limit frame lock catch (9) and a longitudinal limit frame rod (10), the bottom tentacle air bag supporting block (6) is arranged at the lower end of the tentacle air bag (2) at intervals, an L-shaped limiting frame (4) is arranged at the upper end of the tentacle air bag (2), a vertical tentacle limiting frame (5) is arranged at the bottom side of the L-shaped limiting frame (4), a limiting slide rail (7) is arranged on one side of the L-shaped limiting frame (4), a limiting frame lock catch (9) is arranged on a track of the limiting slide rail (7), a columnar through hole structure is vertically arranged on the limiting frame lock catch (9), a longitudinal limiting frame rod (10) is arranged in the through hole, and the bottom end of the longitudinal limiting frame rod (10) is connected with the bottom tentacle air bag supporting block (6);
the surface of the tentacle air bag (2) is provided with an American-style air nozzle (3), and an air cap (8) is arranged at the port of the American-style air nozzle (3);
the L-shaped limiting frame (4) is used for carrying out rigid semi-surrounding limiting wrapping on one side, back to the concrete, of the air bag plugging main body;
the limiting frame lock catch (9) consists of an overhanging strut (91) and a hollow columnar structure (92), one side of the hollow columnar structure (92) is provided with the overhanging strut (91), and the overhanging strut (91) is butted with a steel bar component and is bound with the steel bar through a binding wire to realize the limiting and fastening functions;
the upper end of the longitudinal limiting frame rod (10) penetrates through the limiting frame lock catch (9) and is connected with a fastening bolt (11) and a top nut (12), and the lower end of the longitudinal limiting frame rod (10) penetrates through the bottom and touches the airbag supporting block (6).
2. A cast in place concrete shutoff airbag device in accordance with claim 1, wherein: the square air bag (1) and the tentacle air bag (2) are of an integrated structure and are made of nylon fiber fabric.
3. A cast in place concrete shutoff airbag device in accordance with claim 1, wherein: the bottom tentacle air bag supporting block (6) is arranged in a columnar hollow mode, and the inner wall is smooth and is not provided with a mantle fiber.
4. The use method of the cast-in-place concrete blocking air bag device according to claim 1 is characterized in that: the method comprises the following steps:
the method comprises the following steps: after the beam and the plate steel bars are bound, the blocking air bag in the air leakage state is placed on the abdomen of the beam steel bars, and the American air nozzle (3) faces upwards so as to inflate the air bag blocking main body;
step two: after an operator arranges the air bag device, air is injected by using an air pump through effective butt joint with the American air faucet (3), after the surface of the air bag is hardened, the air pump is disassembled and is screwed down by using an air cap (8) to ensure that compressed air in the air bag is not leaked, and for the part of the air bag blocked by a steel bar, the operator manually stirs the tentacle air bag (2), so that effective flexible self-adaptive plugging is realized;
step three: the L-shaped limiting frame (4) is used for carrying out rigid semi-surrounding limiting wrapping on one side, back to the concrete, of the top of the air bag, the L-shaped limiting frame (4) is of an L shape, plates are arranged on two sides of the L-shaped limiting frame and are as thick as the L-shaped limiting frame (4) to carry out rigid limiting supporting on the easily-disturbed part of the tentacle air bag (2);
step four: a limiting slide rail (7) is arranged on the vertical surface of the L-shaped limiting frame (4) opposite to the concrete surface so as to allow a limiting frame lock catch (9) to be adjusted, aligned and bound in the horizontal axial direction, and the limiting frame lock catch (9) vertically allows a longitudinal limiting frame rod (10) and a bottom tentacle air bag supporting block (6) to be mechanically inserted to form an integral rigid structure;
step five: the overhanging strut (91) of the limiting frame lock catch (9) plays a role in connecting and supporting for binding reinforcing steel bars, and the overhanging strut (91) is butted with a reinforcing steel bar component and is bound with the reinforcing steel bars through binding wires to realize the limiting and fastening functions;
step six: the longitudinal limiting frame rod (10) is in penetrating transition through a hollow columnar structure (92) of a limiting frame lock catch (9), and is in fastening connection with a limiting slide rail (7) through a fastening bolt (11) at the top of the longitudinal limiting frame rod (10) and a top nut (12) to prevent the longitudinal limiting frame rod (10) from falling off due to disturbance in the cast-in-place concrete pouring process, and is penetrated through a bottom tentacle air bag supporting block (6) to achieve an integral limiting structure, the bottom tentacle air bag supporting block (6) is in columnar hollow arrangement, the inner wall is smooth and is not provided with a mantle fiber, and M5 mixed mortar can be arranged at the bottom to reinforce the easily-disturbed part of the tentacle air bag (2) if construction requirements exist;
step seven: after concrete is finally set, firstly removing a binding wire which is bound by an overhanging strut (91) of a limiting frame lock catch (9) and a steel bar, and then loosening a longitudinal limiting frame rod (10) by using a flat screwdriver and extracting the longitudinal limiting frame rod (10);
step eight: after the rigid limiting frame body is dismantled, an operator screws the air cap (8), releases the pressurized air in the air bag through the American air nozzle (3), peels off the air bag and the concrete surface layer part after full air leakage, and the dismantling process is the last processing procedure, so that the problems of chiseling square timbers, chiseling steel wire meshes and chiseling concrete grout leakage cannot occur in the later stage.
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| CN207989049U (en) * | 2018-03-10 | 2018-10-19 | 安徽水利开发股份有限公司 | Tunnel Second Lining Construction double bolloon formula termination device |
| DE102018113652A1 (en) * | 2018-06-08 | 2019-12-12 | Fischerwerke Gmbh & Co. Kg | Inflatable textile hollow body |
| CN110409804A (en) * | 2019-08-12 | 2019-11-05 | 中国建筑第七工程局有限公司 | A kind of gasbag-type concrete blocking apparatus and its application method for building structure floor slab construction seam |
| CN211690832U (en) * | 2019-10-23 | 2020-10-16 | 中建八局第三建设有限公司 | Rubber air bag plugging beam construction joint device |
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